This work proposes the didactic elaboration of a conceptual project of a direct osmosis plant for the generation of clean electric energy. Osmosis is a phenomenon found in nature, which consists of the natural diffusion of water between two solutions of different saline concentrations, through a semipermeable membrane, generating a pressure differential. The work comprises two topics of extreme importance for the training of future engineers: compliance with the determinations imposed in the New National Curriculum Guidelines (DCNs) of undergraduate courses in engineering and ESG (Environmental, Social and Governance), with a focus on sustainability, in particular, renewable energy. Throughout the work, we sought to demonstrate the importance of teaching the methodology of engineering projects, to prepare the professional for the new model of the labor market and enable the development of the necessary skills. In addition, we have several current cases, such as the growing global energy crisis, which once again highlights the importance of investments in alternative energy sources. For this purpose, the documents and engineering design related to Phase 1 of the Front End Loading (FEL) methodology were prepared, such as: Process Table, Block Diagram and Preliminary Mass Balance Calculation Memory. An estimate of the investment required to implement the project was also made. Two scenarios were analyzed according to data collected from the bibliography. In the first case, there was a permeate flow of 6600 m3/h, energy performance of 5 W.m-2 and CAPEX of 13.764.985,00 dollars. The second case has a permeate flow of 1504 m3/h, energy performance of 13.3 W.m-2 and CAPEX of 6.582.319,53 dollars.